urgent!! plss

9.13 A flash chamber operating at 1.5 bar separates a benzene ( 1 ) and toluene ( 2 ) mixture. The vapor stream leaving the flash chamber contains 85mol% benzene and 15% toluene. (a) Estimate the flash chamber temperature. (b) While the flash chamber operates at 1.5 bar, the vapor product specification is changed to 90% benzene and 10% toluene. Would you increase or decrease temperature and by how much? Data: Use the vapor pressure data given in Example 9.23. (Answer: (a) 373.5K and (b) 371.3K )